(19)

(11)

EP 4 140 211 A1

(12)

(43) Date of publication: 01.03.2023 Bulletin 2023/09 (21) Application number: 20932344.3 (22) Date of filing: 20.04.2020

(51) International Patent Classification (IPC):  H04W 72/02(2009.01) H04W 76/00(2009.01) (52) Cooperative Patent Classification (CPC): H04W 40/22; H04W 88/04; H04W 76/14; H04W 76/11; H04W 4/24; H04L 12/1407; H04M 15/66 (86) International application number: PCT/SE2020/050401 (87) International publication number: WO 2021/215973 (28.10.2021 Gazette 2021/43)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (71) Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) 164 83 Stockholm (SE)	(72) Inventors: WANG, Min 977 53 Luleå (SE) CHRISTOFFERSSON, Jan 975 61 Luleå (SE) ERICSON, Mårten 976 32 Luleå (SE) (74) Representative: Valea AB  Box 7086 103 87 Stockholm 103 87 Stockholm (SE)